NC0088200_Renewal Application (Revised)_20231031

„4.STATE c,
ROY COOPER i ; it ,-)
Governor p U
ELIZABETH S.BISER •
,0°te
Secretary ca`
RICHARD E.ROGERS,JR. NORTH CAROLINA
Director Environmental Quality
October 31, 2023
City of Thomasville
Attn: Michael Brandt, City Manager
PO Box 368
Thomasville, NC 27361
Subject: Permit Renewal
Application No. NC0088200
City of Thomasville WTP
Davidson County
Dear Applicant:
The Water Quality Permitting Section acknowledges the October 31, 2023, receipt of your permit renewal application
and supporting documentation. Your application will be assigned to a permit writer within the Section's NPDES WW
permitting branch. Per G.S. 150B-3 your current permit does not expire until permit decision on the application is made.
Continuation of the current permit is contingent on timely and sufficient application for renewal of the current permit. The
permit writer will contact you if additional information is required to complete your permit renewal. Please respond in a
timely manner to requests for additional information necessary to allow a complete review of the application and renewal
of the permit.
Information regarding the status of your renewal application can be found online using the Department of Environmental
Quality's Environmental Application Tracker at:
https://deq.nc.gov/permits-regulations/permit-guidance/environmental-application-tracker
If you have any additional questions about the permit, please contact the primary reviewer of the application using the
links available within the Application Tracker.
Sincerely,
Wren Thedford
Administrative Assistant
Water Quality Permitting Section
cc: Leigh "Misty” Conder, ORC
ec: WQPS Laserfiche File w/application
DE Q North Carolina Departmem of Environmental Qualnt Division of Water Resources
Winston-Salem Regional Office 450 West Hanes Mill Road,Suite 300 Winston-Salem North Carolina 27105
tom•++� �++� 336 7769800

EPA Identification Number NPDES Permit Number Facility Name . `EC riTA t�d 03/05/19
NC0088200 City of Thomasville Water Plant OMB No.2040-0004
U.S.Environmental Protection Agency OCT 31 2023
Form Application for NPDES Permit to Discharge Wastewater
EPA CDEQ/DWR/NPDES
NPDES GENERAL INFORMATI CS
SECTION 1.AC IVITIES REQUIRING AN NPDES PERMIT(40 CFR 122.21(f)and(f)(1))
1.1 Applicants Not Required to Submit Form 1
1.1.1 Is the facility a new or existing publicly owned 1 1 2 Is the facility a new or existing treatment works
treatment works? treating domestic sewage?
If yes,STOP. Do NOT complete 0 No If yes, STOP. Do NOT © No
Form 1,Complete Form 2A. complete Form 1.Complete
Form 2S.
1.2 Applicants Required to Submit Form 1
w. 1.2.1 Is the facility a concentrated animal feeding 1.2.2 Is the facility an existing manufacturing,
operation or a concentrated aquatic animal commercial,mining,or silvicultural facility that is
a production facility? currently discharging process wastewater?
0 0 Yes 4 Complete Form 1 0 No 0 Yes 4 Complete Form ❑ No
z and Form 2B. 1 and Form 2C.
R 1.2.3 Is the facility a new manufacturing,commercial, 1.2.4 Is the facility a new or existing manufacturing,
= mining,or silvicultural facility that has not yet commercial,mining,or silvicultural facility that
commenced to discharge? discharges only nonprocess wastewater?
CO D Yes 4 Complete Form 1 E No Yes 4 Complete Form E No
and Form 2D. 1 and Form 2E.
1.2.5 Is the facility a new or existing facility whose
'— discharge is composed entirely of stormwater
associated with industrial activity or whose
discharge is composed of both stormwater and
non-stormwater?
❑ Yes 4 Complete Form 1 0 No
and Form 2F
unless exempted by
40 CFR
122.26(b)(14)(x)or
b 15 .
SECTION 2.NAIVE,MAILING ADDRESS,AND LOCATION(40 CFR 122.21(f)(2))
2.1 Facility Name
City of Thomasville Water Treatment Plant
2.2 EPA Identification Number
.(5
C)
0
2.3 Facility Contact
Name(first and last) Title Phone number
Leigh"Misty"Conder Laboratory Supervisor-ORC NC0088200 [phone]
= Email address
[e-mail]
2.4 Facility Mailing Address
Street or P.O. box
PO Box 368
City or town State ZIP code
Thomasville NC 27361
EPA Form 3510-1(revised 3-19) Page 1

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
NC0088200 City of Thomasville Water Plant OMB No.2040-0004
2.5 Facility Location
cn
wStreet,route number,or other specific identifier
Q o Old Lexington Road
rn U
c c County name County code(if known)
•
3 Davidson
City or town State ZIP code
03 z R Thomasville NC 27360
SECTION 3.SIC AND NAICS CODES(40 CFR 122.21(f)(3))
3.1 SIC Code(s) Description (optional)
4941 Water Supply
y
0
0
co
3.2 NAICS Code(s) Description(optional)
v
co 22131 Water Supply and Irrigation
U
U)
SECTION 4.OPERATOR INFORMATION(40 CFR 122.21(f)(4))
4.1 Name of Operator
City of Thomasville
4.2 Is the name you listed in Item 4.1 also the owner?
0 Yes ❑ No
L 4.3 Operator Status
❑ Public—federal ❑ Public—state 0 Other public(specify)city of Thomasville
o ❑ Private ❑ Other(specify)
4.4 Phone Number of Operator
[phone]
4.5 Operator Address
Street or P.O. Box
PO Box 368
o �
•� City or town State ZIP code
o 0 Thomasville NC 27361
fl Email address of operator
[e-mail]
SECTION 5.INDIAN LAND(40 CFR 122.21(f)(5))
m o 5.1 Is the facility located on Indian Land?
c J ❑ Yes O No
EPA Form 3510-1(revised 3-19) Page 2

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
NC0088200 City of Thomasville Water Plant OMB No.2040-0004
SECTION 6.EXISTING ENVIRONMENTAL PERMITS(40 CFR 122.21(f)(6))
6.1 Existing Environmental Permits(check all that apply and print or type the corresponding permit number for each)
❑✓ NPDES(discharges to surface ❑ RCRA(hazardous wastes) 0 UIC(underground injection of
o water) fluids)
• NC0088200
w a ❑ PSD(air emissions) ❑ Nonattainment program(CM) 0 NESHAPs(CM)
w ❑ Ocean dumping(MPRSA) 0 Dredge or fill(CWA Section 404) 0 Other(specify)
ECTION 7.MAP(40 CFR 122.21(f)(7))
7.1 Have you attached a topographic map containing all required information to this application? (See instructions for
co specific requirements.)
❑� Yes 0 No 0 CAFO—Not Applicable(See requirements in Form 2B.)
SECTION 8.NATURE OF BUSINESS(40 CFR 122.21(f)(8))
8.1 Describe the nature of your business.
Municipal water treatment of water from Lake Thom-a-Lex with discharge of wastewater to an alum lagoon.
v,
w
y
.r-
O
a,
t0
Z
.ECTION 9.COOLING WATER INTAKE STRUCTURES(40 CFR 122.21(f)(9))
9.1 Does your facility use cooling water?
❑ Yes ❑ No 4 SKIP to Item 10.1.
9.2 Identify the source of cooling water. (Note that facilities that use a cooling water intake structure as described at
w 40 CFR 125, Subparts I and J may have additional application requirements at 40 CFR 122.21(r). Consult with your
— NPDES permitting authority to determine what specific information needs to be submitted and when.)
o °'
O Y
C
c
SECTION 10.VARIANCE REQUESTS(40 CFR 122.21(f)(10))
10.1 Do you intend to request or renew one or more of the variances authorized at 40 CFR 122.21(m)?(Check all that
apply.Consult with your NPDES permitting authority to determine what information needs to be submitted and
when.)
cr d ❑ Fundamentally different factors(CWA ❑ Water quality related effluent limitations(CWA Section
Section 301(n)) 302(b)(2))
co
❑ Non-conventional pollutants(CWA ❑ Thermal discharges(CWA Section 316(a))
Section 301(c)and(g))
❑r Not applicable
EPA Form 3510-1(revised 3-19) Page 3

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
NC0088200 City of Thomasville Water Plant OMB No.2040-0004
SECTION 11.CHECKLIST AND CERTIFICATION STATEMENT(40 CFR 122.22(a)and(d))
11.1 In Column 1 below, mark the sections of Form 1 that you have completed and are submitting with your application.
For each section,specify in Column 2 any attachments that you are enclosing to alert the permitting authority.Note
that not all applicants are required to provide attachments.
Column 1 Column 2
❑✓ Section 1:Activities Requiring an NPDES Permit ❑ w/attachments
El Section 2: Name, Mailing Address,and Location ❑ wl attachments
❑✓ Section 3: SIC Codes ❑ wl attachments
O Section 4:Operator Information ❑ w/attachments
ElSection 5: Indian Land ❑ w/attachments
_ ❑✓ Section 6: Existing Environmental Permits 0 wl attachments
Section 7:Map w/topographic
❑ map ❑
❑✓ w/additional attachments
cn
o ❑r Section 8:Nature of Business ❑ wl attachments
CD
0 Section 9:Cooling Water Intake Structures ❑ w/attachments
CD
❑r Section 10:Variance Requests ❑ wl attachments
as
❑✓ Section 11:Checklist and Certification Statement ❑ wl attachments
11.2 Certification Statement
c�
I certify under penalty of law that this document and all attachments were prepared under my direction or supervision
in accordance with a system designed to assure that qualified personnel properly gather and evaluate the
information submitted. Based on my inquiry of the person or persons who manage the system, or those persons
directly responsible for gathering the information, the information submitted is, to the best of my knowledge and
belief, true, accurate,and complete. I am aware that there are significant penalties for submitting false information,
including the possibility of fine and imprisonment for knowing violations.
Name(print or type first and last name) Official title
Michael Brandt City Manager
Signature Date signed
9 9
1ZdjL /D//�V 2 2 ?
raj!
EPA Form 3510-1(revised 3-19) Page 4

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City of Thomasville
Thomasville WTP N '0 ir�111. t►
NPDES Permit NC0088200 A ��*��y�/j ���`wor4�1
Facility Location ~� 4`1 0,.�
Receiving Stream: UT to Rich Fork Creek Stream Class:C scale not shown
Stream Segment: 12-119-7 Sub-Basin tr..03-07-071
River Basin:Yadkin Pee-Dee HUC:0304010302 SCALE USGS Quad:Lexington East
County: Davidson 1:24,000 35.87278° -80.15028°

•
EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
NC0088200 City of Thomasville Water Plant OMB No.2040-0004
Form U.S.Environmental Protection Agency
2C EPA Application for NPDES Permit to Discharge Wastewater
NPDES EXISTING MANUFACTURING,COMMERCIAL,MINING,AND SILVIC n •• �S
SECTION 1.OUTFALL LOCATION (40 CFR 122.21(g)(1))
1.1 Provide information on each of the facility's outfalls in the table below. OCT 3 Z 2023
o Outfall Receiving Water Name Latitude Longitude
Number
J
001 UT to Rich Fork Creek 35° 87278' " Np WR/NPDES
7
0
SECTION 2.LINE DRAWING(40 CFR 122.21(g)(2))
p, 2.1 Have you attached a line drawing to this application that shows the water flow through your facility with a water
c 3 balance?(See instructions for drawing requirements.See Exhibit 2C-1 at end of instructions for example.)
❑ Yes ❑r No
SECTION 3.AVERAGE FLOWS AND TREATMENT(40 CFR 122.21(g)(3))
3.1 For each outfall identified under Item 1.1,provide average flow and treatment information.Add additional sheets if
necessary.
*'Outfall Number** o01
Operations Contributing to Flow
Operation Average Flow
Alum Lagoon O 29/0.136 mgd
Imgd
mgd
LT Treatment Units
Description Code from Final Disposal of Solid or
(include size,flow rate through each treatment unit, Table 2C-1 Liquid Wastes Other Than
retention time,etc.) L by Discharge
Sedimentation 1-U Landfill
EPA Form 3510-2C(Revised 3-19) Page

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
NC0088200 City of Thomasville Water Plant OMB No.2040-0004
3.1 **Outfall Number**
cont. Operations Contributing to Flow
Operation Average Flow
mgd
mgd
mgd
mgd
Description Code from Final Disposal of Solid or
(include size,flow rate through each treatment unit, Table 2C-1 Liquid Wastes Other Than
retention time,etc.) _ by Discharge
a)
0
U
m
m
- "Outfall Number**
Operations Contributing to Flow
o Operation Average Flow
tr. —
rn mgd
a,
mgd
mgd
mgd
Treatment Units
Description Code from Final Disposal of Solid or
(include size,flow rate through each treatment unit, Table 2C-1 Liquid Wastes Other Than
retention time,etc.) by Discharge
3.2 Are you applying for an NPDES permit to operate a privately owned treatment works?
E ❑ Yes ❑ No 4 SKIP to Section 4.
N 3.3 Have you attached a list that identifies each user of the treatment works?
❑ Yes ❑ No
EPA Form 3510-2C(Revised 3-19) Page 2

• 1
EPA Identification Number NPDES Permit Number Facility Name Form Approved 031051 9
NC0088200 City of Thomasville Water Plant OMB No.2040-0004
SECTION 4.INTERMITTENT FLOWS (40 CFR 122.21(g)(4))
4.1 Except for storm runoff, leaks,or spills,are any discharges described in Sections 1 and 3 intermittent or seasonal?
❑ Yes © No 4 SKIP to Section 5.
4.2 Provide information on intermittent or seasonal flows for each applicable outfall.Attach additional pages, if necessary.
Outfall Operation Fre•uency Flow Rate
Number (list) Average Average Long-Term Maximum Duration
Days/Week Months/Year Average Daily
days/week months/year mgd mgd days
days/week months/year mgd mgd days
days/week months/year mgd mgd days
days/week months/year mgd mgd days
days/week months/year mgd mgd days
days/week months/year mgd mgd days
days/week months/year mgd mgd days
days/week months/year mgd mgd days
days/week months/year mgd mgd days
SECTION 5.PRODUCTION f40 CFR 122.21(g)(5))
5.1 Do any effluent limitation guidelines(ELGs)promulgated by EPA under Section 304 of the CWA apply to your facility?
❑ Yes 0 No 4 SKIP to Section 6.
Provide the followinginformation on applicable ELGs.
5.2pp
ELG Category ELG Subcategory Regulatory Citation
.a
n
5.3 Are any of the applicable ELGs expressed in terms of production(or other measure of operation)?
❑ Yes © No 4 SKIP to Section 6.
0
.174 5.4 Provide an actual measure of daily production expressed in terms and units of applicable ELGs.
Outfall Unit of
Operation,Product,or Material Quantity per Day
-p Number Measure
co
O
O
a
EPA Form 3510-2C(Revised 3-19) Page 3

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
NC0088200 City of Thomasville Water Plant OMB No.2040-0004
SECTION 6.IMPROVEMENTS(40 CFR 122.21(g)(6))
6.1 Are you presently required by any federal,state,or local authority to meet an implementation schedule for constructing,
upgrading,or operating wastewater treatment equipment or practices or any other environmental programs that could
affect the discharges described in this application?
❑ Yes El No 4 SKIP to Item 6.3.
6.2 Briefly identify each applicable project in the table below.
Affected Final Compliance Dates
E Brief Identification and Description of Outfalls Source(s)of
E Project (list outfall Discharge Required Projected
number)
E
-a
-01
O)
1 I
6.3 Have you attached sheets describing any additional water pollution control programs(or other environmental projects
that may affect your discharges)that you now have underway or planned?(optional item)
❑ Yes ❑ No El Not applicable
SECTION 7.EFFLUENT AND INTAKE CHARACTERISTICS(40 CFR 122.21(g)(7))
See the instructions to determine the pollutants and parameters you are required to monitor and, in turn,the tables you must
complete.Not all applicants need to complete each table.
Table A.Conventional and Non-Conventional Pollutants
7.1 Are you requesting a waiver from your NPDES permitting authority for one or more of the Table A pollutants for any of
your outfalls?
❑ Yes ❑ No 4 SKIP to Item 7.3.
7.2 If yes,indicate the applicable outfalls below.Attach waiver request and other required information to the application.
Outfall Number Outfall Number Outfall Number
7.3 Have you completed monitoring for all Table A pollutants at each of your outfalls for which a waiver has not been
requested and attached the results to this application package?
0 Yes ❑ No;a waiver has been requested from my NPDES
permitting authority for all pollutants at all outfalls.
iS Table B.Toxic Metals,Cyanide,Total Phenols,and Organic Toxic Pollutants
7.4 Do any of the facility's processes that contribute wastewater fall into one or more of the primary industry categories
listed in Exhibit 2C-3?(See end of instructions for exhibit.)
R ❑ Yes ✓❑ No 4 SKIP to Item 7.8.
7.5 Have you checked"Testing Required"for all toxic metals,cyanide,and total phenols in Section 1 of Table B?
❑ Yes ❑ No
7.6 List the applicable primary industry categories and check the boxes indicating the required GC/MS fraction(s)identified
in Exhibit 2C-3.
PrimaryRequired GC/MS Fraction(s)
Industry Category
(Check applicable boxes.)
❑Volatile ❑Acid 0 Base/Neutral 0 Pesticide
0 Volatile 0 Acid 0 Base/Neutral 0 Pesticide
0 Volatile 0 Acid 0 Base/Neutral 0 Pesticide
EPA Form 3510-2C(Revised 3-19) Page 4

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
NC0088200 City of Thomasville Water Plant OMB No.2040-0004
7.7 Have you checked"Testing Required"for all required pollutants in Sections 2 through 5 of Table B for each of the
GC/MS fractions checked in Item 7.6?
❑ Yes ❑ No
7.8 Have you checked"Believed Present"or"Believed Absent"for all pollutants listed in Sections 1 through 5 of Table B
where testing is not required?
❑✓ Yes ❑ No
7.9 Have you provided(1)quantitative data for those Section 1,Table B, pollutants for which you have indicated testing is
required or(2)quantitative data or other required information for those Section 1,Table B,pollutants that you have
indicated are"Believed Present"in your discharge?
❑✓ Yes ❑ No
7.10 Does the applicant qualify for a small business exemption under the criteria specified in the instructions?
❑ Yes 4 Note that you qualify at the top of Table B, ❑ No
-0 then SKIP to Item 7.12.
7.11 Have you provided(1)quantitative data for those Sections 2 through 5,Table B,pollutants for which you have
o determined testing is required or(2)quantitative data or an explanation for those Sections 2 through 5,Table B,
pollutants you have indicated are"Believed Present"in your discharge?
© Yes ❑ No
w Table C.Certain Conventional and Non-Conventional Pollutants
7.12 Have you indicated whether pollutants are"Believed Present"or"Believed Absent"for all pollutants listed on Table C
for all outfalls?
CD © Yes ❑ No
c 7.13 Have you completed Table C by providing(1)quantitative data for those pollutants that are limited either directly or
indirectly in an ELG and/or(2)quantitative data or an explanation for those pollutants for which you have indicated
id "Believed Present"?
0 Yes ❑ No
w Table D.Certain Hazardous Substances and Asbestos
7.14 Have you indicated whether pollutants are"Believed Present"or"Believed Absent"for all pollutants listed in Table D for
all outfalls?
El Yes ❑ No
7.15 Have you completed Table D by(1)describing the reasons the applicable pollutants are expected to be discharged
and(2)by providing quantitative data,if available?
❑ Yes E No
Table E.2,3,7,8-Tetrachlorodibenzo-p-Dioxin(2,3,7,8-TCDD)
7.16 Does the facility use or manufacture one or more of the 2,3,7,8-TCDD congeners listed in the instructions,or do you
know or have reason to believe that TCDD is or may be present in the effluent?
❑ Yes. Complete Table E. ❑.� No 4 SKIP to Section 8.
7.17 Have you completed Table E by reporting qualitative data for TCDD?
❑ Yes ❑ No
SECTION 8.USED OR MANUFACTURED TOXICS(40 CFR 122.21(g)(9))
8.1 Is any pollutant listed in Table B a substance or a component of a substance used or manufactured at your facility as
an intermediate or final product or byproduct?
w ❑✓ Yes ❑ No 4 SKIP to Section 9.
8.2 List the pollutants below.
° 1 Copper-see attached 4 7.
d 2, Zinc-see attached 5. 8.
3. 6. 9.
EPA Form 3510-2C(Revised 3-19) Page 5

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
NC0088200 City of Thomasville Water Plant OMB No.2040-0004
SECTION 9.BIOLOGICAL TOXICITY TESTS(40 CFR 122.21(g)(11))
9.1 Do you have any knowledge or reason to believe that any biological test for acute or chronic toxicity has been made
within the last three years on(1)any of your discharges or(2)on a receiving water in relation to your discharge?
E Yes ❑ No 4 SKIP to Section 10.
i 9.2 identify the tests and their purposes below.
Submitted to NPDES
Test(s) Purpose of Test(s) Date Submitted
Permitting Authority?
0
Ceriodaphnia acute permit required-see
El
toxicity attached for list Yes ❑ No
❑ Yes ❑ No
❑ Yes ❑ No
SECTION 10.CONTRACT ANALYSES(40 CFR 122.21(g)(12))
10.1 Were any of the analyses reported in Section 7 performed by a contract laboratory or consulting firm?
E Yes E No 4 SKIP to Section 11.
10.2 Provide information for each contract laboratory or consulting firm below.
Laboratory Number 1 Laboratory Number 2 Laboratory Number 3
Name of laboratory/firm Meritech,Inc.
N
T Laboratory address 642 Tamco Rd.
Reidsville,NC 27320
0 Phone number
[phone]
Pollutant(s)analyzed Aluminum
Copper
Fluoride
Zinc
Total-Nitrogen
SECTION 11.ADDITIONAL INFORMATION(40 CFR 122.21(g)(13))
11.1 Has the NPDES permitting authority requested additional information?
a ❑ Yes ❑r No . SKIP to Section 12.
0
11.2 List the information requested and attach it to this application.
1. 4.
0
2, 5.
3. 6.
EPA Form 3510-2C(Revised 3-19) Page 6

•
EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
NC0088200 City of Thomasville Water Plant OMB No.2040-0004
SECTION 12.CHECKLIST AND CERTIFICATION STATEMENT(40 CFR 122.22(a)and (d))
12.1 In Column 1 below, mark the sections of Form 2C that you have completed and are submitting with your application.
For each section,specify in Column 2 any attachments that you are enclosing to alert the permitting authority. Note
that not all applicants are required to complete all sections or provide attachments.
Column 1 Column 2
❑✓ Section 1:Outfall Location 0 w/attachments
❑✓ Section 2:Line Drawing ✓❑ w/line drawing ❑ wl additional attachments
.171 Section 3:Average Flows and w/list of each user of
❑
Treatment wl attachments ❑ privately owned treatment
works
• Section 4: Intermittent Flows ❑ w/attachments
❑✓ Section 5: Production ❑ w/attachments
w/optional additional
ESection 6: Improvements ❑ w/attachments ❑ sheets describing any
additional pollution control
plans
❑ wl request for a waiver and ❑ w/explanation for identical
supporting information outfalls
❑ wl small business exemption ❑ w/other attachments
request
❑ Section 7:Effluent and Intake ❑ w/Table A ❑ w/Table B
Characteristics
❑ w/Table C ❑ wl Table D
d ❑ wl Table E wl analytical results as an
L attachment
Q Section 8:Used or Manufactured ❑ wl attachments
Toxics
❑ Section 9: Biological Toxicity ❑ w/attachments
t Tests
U
✓❑ Section 10:Contract Analyses E wl attachments
✓❑ Section 11:Additional Information ❑ w/attachments
❑ Section 12:Checklist and ❑ w/attachments
Certification Statement
12.2 Certification Statement
I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in
accordance with a system designed to assure that qualified personnel properly gather and evaluate the information
submitted.Based on my inquiry of the person or persons who manage the system,or those persons directly
responsible for gathering the information,the information submitted is, to the best of my knowledge and belief,true,
accurate, and complete. 1 am aware that there are significant penalties for submitting false information,including the
possibility of fine and imprisonment for knowing violations.
Name(print or type first and last name) Official title
Michael Brandt City Manager
Signature Date signed
71111 /c////tea-22
EPA Form 3510-2C(Revised 3-19) Page 7

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EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19 - •
NC0088200 City of Thomasville Water Plant 001 OMB No.2040-0004
TABLE A. CONVENTIONAL AND NON CONVENTIONAL POLLUTANTS(40 CFR 122.21(g)(7)(iii))' -
Effluent Intake
Waiver (Optional)
Units Maximum Maximum Long-Term
Pollutant Requested
(if applicable) (specify) Daily Monthly Average Daily Number of Long-Term Number of
Discharge Discharge Discharge Analyses Average Value Analyses
(required) (if available) (if available)
0 Check here if you have applied to your NPDES permitting authority for a waiver for all of the pollutants listed on this table for the noted outfall.
Biochemical oxygen demand Concentration
1' ❑(BOD5)
Mass
Chemical oxygen demand Concentration
2. ❑
(COD) Mass
Concentration
3. Total organic carbon(TOC) 0
Mass
Concentration mg/L 21.2 5.09 33
4. Total suspended solids(TSS) 0
-
Mass
Concentration
5. Ammonia(as N) 0
Mass
6. Flow 0 Rate MGD 2.71/7.05 0.129/0.136 975
Temperature(winter) 0 °C °C
7. -
Temperature(summer) 0 °C °C
pH(minimum) 0 Standard units S.U. 6.0 65
8.
pH(maximum) 0 Standard units S.U. 7.6 65
' Sampling shall be conducted according to sufficiently sensitive test procedures(i.e., methods)approved under 40 CFR 136 for the analysis of pollutants or pollutant parameters or
required under 40 CFR chapter I,subchapter N or 0.See instructions and 40 CFR 122.21(e)(3).
EPA Form 3510-2C(Revised 3-19) Page 9

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EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
NC0088200
City of Thomasville Water Plant 001 OMB No.2040-0004
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1
Presence or Absence
(check one) Effluent Intake
(optional)
Pollutant/Parameter Testing Units Long-Term
(and CAS Number,if available) Required Believed Believed (specify) Maximum Maximum Average Number Long- Number
Present Absent Daily Monthly Daily of Term of
Discharge Discharge Discharge Analyses Average Analyses
(required) (if available) (if available) Value
❑ Check here if you qualify as a small business per the instructions to Form 2C and,therefore,do not need to submit quantitative data for any of the organic toxic pollutants in Sections
2 through 5 of this table.Note,however,that you must still indicate in the appropriate column of this table if you believe any of the pollutants listed are present in your discharge.
Section 1.Toxic Metals,Cyanide,and Total Phenols
Antimony,total El El ✓ Concentration
1.1 (7440-36-0) Mass
Arsenic,total ✓ Concentration
1.2 0 El
(7440-38-2) Mass
Beryllium,total Concentration
1.3 (7440-41-7) Mass
Cadmium,total ✓ Concentration
1.4 0 0
(7440-43-9) Mass _
Chromium,total 0 0 ✓ Concentration
1.5 (7440-47-3) Mass
Copper,total ✓ Concentration ug/L 3.0 .09 33
1.6 (7440-50-8) Mass _
1.7 Lead,total 1=1 Concentration
(7439-92-1) Mass
1.8 Mercury,total � Concentration
(7439-97-6) Mass
Nickel,total Concentration
1'9 (7440-02-0) Mass
Selenium,total Concentration
1.10 0(7782-49-2) Mass
Silver,total Concentration
1.11 (7440-22-4) El 0 ❑ ,
Mass
EPA Form 3510-2C(Revised 3-19) Page 11

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
NC0088200 City of Thomasville Water Plant 001 OMB No.2040-0004
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1
Presence or Absence Intake
(check one) Effluent (optional)
Pollutant/Parameter Testing Units Long-Term
(and CAS Number,if available) Required Believed Believed (specify) Maximum Maximum Average Number Long- Number
Present Absent Daily Monthly Daily of Term of
Discharge Discharge Discharge Analyses Average Analyses
(required) (if available) Value
(if available)
Thallium,total Concentration
1.12 (7440-28-0) Mass _
1.13 Zinc,total 0 Concentration
7440-66-6 r
I 0
( ) Mass ug/L 7 0.58 11
1.14 Cyanide,total Elr Concentration
(57-12-5) Mass
1.15 Phenols,total 0 I=1 E Concentration
Mass
Section 2.Organic Toxic Pollutants(GC/MS Fraction—Volatile Compounds)
21 Acrolein Concentration -
(107-02-8) Mass
2.2 Acrylonitrile ElConcentration
(107-13-1) Mass
2.3 Benzene � Concentration
CI 0(71-43-2) Mass _
2.4 Bromoform r� Concentration
El El(75-25-2) Mass
2.5 Carbon tetrachloride r� Concentration
(56-23-5) Mass
2.6 Chlorobenzene CI 0 Concentration
(108-90-7) r Mass
2.7 Chlorodibromomethane CI 0 El
Concentration
-
(124-48-1) Mass _
2.8 Chloroethane Concentration
(75-00-3) Mass
EPA Form 3510-2C(Revised 3-19) Page 12

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
NC0088200
City of Thomasville Water Plant 001 OMB No.2040-0004
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1
Presence or Absence
(check one) Effluent Intake
(optional)
Pollutant/Parameter Testing Units Long-Term
(and CAS Number,if available) Required Believed Believed (specify) Maximum Maximum Average Number Long- Number
Present Absent Daily Monthly Term
Daily of of
Deg fired) avalabl )lee Discharge Analysese AverageValue Analyses
( (if (if available)
2-chloroethylvinyl ether ✓ Concentration
2'9 El 0(110-75-8) Mass
2.10 Chloroform(67-66-3) 0 0 0 Concentration
Mass
211 Dichlorobromomethane � Q Concentration
(75-27-4) Mass
212 11-dichloroethane 0 Concentration
(75-34-3) Mass
2.13 12-dichloroethane 0 Concentration
(107-06-2) Mass
2.14 1,1-dichloroethylene Concentration
(75-35-4) Mass
2.15 1 2 dichloropropaneEl 0 2 Concentration -
(78-87-5) Mass
2.16 1,3-dichloropropylene 0 0 Concentration
542-75-6 ✓
( ) Mass
2.17 Ethylbenzene a Concentration
0 0100-41-4
( ) Mass
2.18 Methyl bromide � Concentration
0 0(74-83-9) ✓ Mass
2.19 Methyl chloride ✓❑ Concentration
0 0 -
(74-87-3) Mass
Methylene chloride � 0 Concentration
✓
2.20 (75-09-2) Mass
1 1,2,2-tetrachloroethane Concentration
2.21 (79-34-5) 0 0 ✓ Mass
EPA Form 3510-2C(Revised 3-19) Page 13

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
NC0088200 City of Thomasville Water Plant 001 OMB No.2040-0004
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1
Presence or Absence Intake
(check one) Effluent
(optional)
Pollutant/Parameter Testing Units Long-Term
Long-
(and CAS Number,if available) Required Believed Believed Maximum Maximum q (specify) Daily Monthly Average Number Term Number
Present Absent
Discharge Discharge Daily of Average of
(required) (if available) Di(ifscharavailable)ge Analyses Value Analyses
Tetrachloroethylene ❑ Concentration
2.22 ✓
(127-18-4) Mass
Toluene 0 Concentration
2.23 CI 0
(108-88-3) Mass
12-trans-dichloroethylene Concentration
2.24 (156-60-5) Mass
1,1,1-trichloroethane ID Concentration
2.25 (71-55-6) Mass
1,1,2-trichloroethane o Concentration
2.26 (79-00-5) Mass
Trichioroethylene Concentration
2.27 (79-01-6) Mass
Vinyl chloride Concentration
2.28 (75-01-4) Mass
Section 3.Organic Toxic Pollutants(GC/MS Fraction—Acid Compounds)
2-chlorophenol Concentration
3.1 CI CI CI
(95-57-8) Mass
3.2 2,4-dichlorophenol Concentration 1
CI 0 CI 1
(120-83-2) Mass
2,4-dimethylphenol Concentration
3.3 (105-67-9) ❑ 0 Mass 1
4,6-dinitro-o-cresol Concentration
3.4 (534-52-1) Mass
2,4-dinitrophenol Concentration
3.5 (51-28-5) Mass
EPA Form 3510-2C(Revised 3-19) Page 14

1
EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
NC0088200 City of Thomasville Water Plant 001 OMB No.2040-0004
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1
Presence or Absence Intake
(check one) Effluent
(optional)
Pollutant/Parameter Testing Units Long-Term
(and CAS Number,if available) Required Believed Believed (specify) Maximum Maximum Average Number Long- Number
Present Absent Daily Monthly Term
Discharge Discharge Daily of Average of
(required) (if available) Discharge Analyses Value Analyses
(if available) _
2-nitrophenol 0 Concentration
3.6 0 El -
(88-75-5) Mass
4-nitrophenol ✓� Concentration
3.7 0
(100-02-7) Mass
p-chloro-m-cresol Concentration
3.8 (59-50-7) ✓ Mass
Pentachlorophenol ❑ Concentration
3.9 (87-86-5) Mass
Phenol ❑ Concentration
3.10 (108-95-2) Mass
2,4,6-trichiorophenol ❑ Concentration
3.11 (88-05-2) ✓ Mass
Section 4.Organic Toxic Pollutants(GC/MS Fraction—Base/Neutral Compounds)
Acenaphthene ✓� Concentration
4.1 (83-32-9) Mass
Acenaphthylene LiConcentration
4.2 (208-96-8) Mass
Anthracene ❑ Concentration
4.3 (120-12-7) Mass
Benzidine 0 Concentration
4.4 (92-87-5) Mass
Benzo(a)anthracene � � 0 Concentration
4.5 (56-55-3) Mass
4.6 Benzo(a)pyrene 0 0 0 Concentration
(50-32-8) Mass
EPA Form 3510-2C(Revised 3-19) Page 15

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
NC0088200 City of Thomasville Water Plant 001 OMB No.2040-0004
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))l
Presence or Absence Intake
(check one) Effluent
(optional)
Pollutant/Parameter Testing Units Long-Term
(and CAS Number,if available) Required Believed Believed (specify) Maximum Maximum Average Number Long- Number
Present Absent Daily Monthly Term
of of
Discharge Discharge Daily Analyses Average Analyses
(required) (if available) DischargeValue
(if available) _
3,4-benzofluoranthene � ❑ Concentration
4.7 (205-99-2) Mass
4.8 Benzo(ghi)perylene ❑ z Concentration
-
(191-24-2) Mass
Benzo(k)fluoranthene 2 Concentration
4.9 -
(207-08-9) Mass
Bis(2-chloroethoxy)methane ❑ Concentration
-
4.10 (111-91-1) Mass
Bis(2-chloroethyl)ether ❑ Concentration
4.11 -
(111-44-4) Mass
4.12 Bis(2-chloroisopropyl)ether ❑ 2 Concentration
(102-80-1) Mass
4.13 Bis(2-ethylhexyl)phthalate 0 0 2Concentration
(117-81-7) Mass
4-bromophenyl phenyl ether ❑ Concentration
4.14 (101-55-3) Mass
Butyl benzyl phthalate D 0 Concentration
4.15 (85-68-7) Mass
2-chloronaphthalene ❑ � ❑ Concentration
4.16 (9158-7) Mass
4-chlorophenyl phenyl ether � ❑ Concentration
4.17 (7005-72-3) Mass
4.18 Chrysene 2 Concentration
0 0
(218-01-9) Mass
Dibenzo(a,h)anthracene El � ✓ Concentration
4.1E (53-70-3) Mass
EPA Form 3510-2C(Revised 3-19) Page 16

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
NC0088200 City of Thomasville Water Plant 001 OMB No.2040-0004
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1
Presence or Absence Intake
(check one) Effluent (optional)
Pollutant/Parameter Testing Units Long-Term
(and CAS Number,if available) Required Believed Believed (specify) Maximum Maximum Average Number Long- Number
Present Absent Daily Monthly Daily of Term of
Discharge (if e available) Discharge Analyses AverageValue Analyses
(required)
(if available)
4.20 1,2-dichlorobenzene 0 Concentration
(95-50-1) Mass
4.21 13-dichlorobenzene El Concentration
0 0 -
(541-73-1) Mass _
1,4-dichlorobenzene � Concentration
4.22 0 0
(106-46-7) ✓ Mass
3,3-dichlorobenzidine ✓� Concentration
4.23 El 0
(91-94-1) Mass
4.24 Diethyl phthalate O Concentration
El 0(84-66-2) Mass
4.25 Dimethyl phthalate 0 0 0 Concentration
(131-11-3) Mass
4.26 Di n butyl phthalate 2 Concentration
(84-74-2) Mass
4.27 2,4-dinitrotoluene 0 Concentration
0 0 -
(121-14-2) Mass _
4.28 2,6-dinitrotoluene 2 Concentration
0 0
(606-20-2) Mass
4.29 Di-n-octyl phthalate Elz Concentration
(117-84-0) Mass
1,2-Diphenylhydrazine Concentration
4.30 (as azobenzene)(122-66-7) Mass _
Fluoranthene � Concentration
4.31 0 0 -
(206-44-0) ✓ Mass
Fluorene 2 Concentration
4.32 0 0
(86-73-7) Mass
EPA Form 3510-2C(Revised 3-19) Page 17

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
NC0088200 City of Thomasville Water Plant 001 OMB No.2040-0004
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1
Presence or Absence Intake
(check one) Effluent
(optional)
Pollutant/Parameter Testing Units Long-Term
(and CAS Number,if available) Required Believed Believed (specify) Maximum Maximum Average Number Long- Number
Present Absent Daily Monthly Term
Daily of of
Discharge Discharge Average
(required) (if available) Discharge Analyses Value Analyses
(if available)
Hexachlorobenzene � Concentration
4.33 El 0 -
(118-74-1) ✓ Mass
Hexachlorobutadiene ❑ Concentration
4.34 0 0
(87 68 3) Mass
Hexachlorocyclopentadiene El Concentration
4.35 0
(77-47-4) Mass
4.36 Hexachloroethane ❑� Concentration
0 0 -
(67-72-1) Mass
Indeno(1,2,3-cd)pyrene 0 ❑ Concentration
4.37 (193-39-5) Mass
Isophorone ❑ Concentration
4.38 0 0
(78-59-1) Mass
Naphthalene � Concentration
4.39 (91-20-3) ✓ Mass
4.40 Nitrobenzene ❑� Concentration
0 El(98-95-3) Mass
N-nitrosodimethylamine El Concentration
4.41 (62 75 9) Mass
4.42 N-nitrosodi-n-propylamine 0 ❑� Concentration
(621-64-7) Mass
N-nitrosodiphenylamine 0 � Concentration
4.43 (86-30-6) ✓ Mass
Phenanthrene ❑ Concentration
4.44 (85-01-8) Mass
Pyrene Concentration
4.45 (129-00-0) Mass
EPA Form 3510-2C(Revised 3-19) Page 18

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
NC0088200 City of Thomasville Water Plant 001 OMB No.2040-0004
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))1
Presence or Absence Intake
(check one) Effluent
(optional)
Pollutant/Parameter Testing Units Long-Term
(and CAS Number,if available) Required Believed Believed (specify) Maximum Maximum Average Number Long- Number
Present Absent Daily Monthly Term
Discharge Discharge Daily of Average of
(required) (if available) Discharge Analyses Value Analyses
(if available)
1 2 4-trichlorobenzene Concentration
4.46 El 0(120-82-1) ✓ Mass
Section 5.Organic Toxic Pollutants(GC/MS Fraction—Pesticides)
Aldrin 2 Concentration
5.1 0 0
(309-00-2) Mass
a-BHC Concentration
5.2 (319-84-6) ElMass — —
8-BHC 2 Concentration
5.3 (319-85-7) Mass
y-BHC 2 Concentration
5.4 El El(58-89-9) Mass
b-BHC 0 Concentration
5.5 El 0
(319-86-8) Mass
5.6 Chlordane 2 Concentration
El 0
(57-74-9) Mass
4,4'-DDT ✓� Concentration
5.7 El El(50-29-3) Mass
5.8 4 4'-DDE 0 Concentration
(72-55-9) Mass
5.9 4,4'-DDD 0Concentration
El 0
(72-54-8) Mass
5.10 Dieldrin 0 Concentration
0 0(60-57-1) Mass
a-endosulfan 0 Concentration _
5.11 0 0
(115-29-7) Mass
EPA Form 3510-2C(Revised 3-19) Page 19

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
NC0088200 City of Thomasville Water Plant 001 OMB No.2040-0004
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))l
Presence or Absence
(check one) Effluent Intake
(optional)
PollutantlParameter Testing Units Long-Term
(and CAS Number,if available) Required Believed Believed (specify) Maximum Maximum Average Number Long- Number
Present Absent Daily Monthly Daily of Term of
Discharge Discharge Discharge Analyses Average Analyses
(required) (if available) (if available) Value
—
-endosulfan ❑ ❑ ❑ Concentration
5.12 (115-29-7) Mass
Endosulfan sulfate Concentration
5.13 (1031 07 8) 0 ❑ ❑
Mass
Endrin Concentration
5.14 (72 20 8) 0 0 ❑ Mass
Endrin aldehyde 0 0 ❑ Concentration
5.15 (7421-93-4) Mass
Heptachlor 0 0 0 Concentration
-
5.16 (76-44-8) Mass _
Heptachlor epoxide Concentration
5.17 (1024-57-3) 0 0 C Mass
PCB-1242 Concentration
5.18 (53469-21-9) 0 0 0 Mass
PCB-1254 Concentration
5.19 (11097-69-1) 0 0 0
Mass
-
PCB-1221 Concentration
5.20 (11104-28-2) 0 0 ❑� Mass
PCB-1232 Concentration
5.21 (11141-16-5) 0 0 0 Mass
PCB-1248 Concentration
5.22 (12672-29-6) 0 0 0 Mass
PCB-1260 Concentration
5.23 (11096-82-5) 0 0 0 Mass
PCB-1016 Concentration
5.24 (12674-11-2) 0 0 0 Mass
EPA Form 3510-2C(Revised 3-19) Page 20

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
NC0088200 City of Thomasville Water Plant 001 OMB No.2040-0004
TABLE B.TOXIC METALS,CYANIDE,TOTAL PHENOLS,AND ORGANIC TOXIC POLLUTANTS(40 CFR 122.21(g)(7)(v))'
Presence or Absence Intake
(check one) Effluent
(optional)
Pollutant/Parameter Testing Units Long-Term
(and CAS Number,if available) Required Believed Believed (specify) Maximum Maximum Average Number Long- Number
Present Absent Daily Monthly Term
Daily of of
Discharge Discharge Average
(required) (if available) Discharge Analyses Value Analyses
(if available)
Toxaphene Concentration
5.25 (8001-35-2) ❑ 0 E Mass
' Sampling shall be conducted according to sufficiently sensitive test procedures(i.e.,methods)approved under 40 CFR 136 for the analysis of pollutants or pollutant parameters or
required under 40 CFR chapter I,subchapter N or 0.See instructions and 40 CFR 122.21(e)(3).
EPA Form 3510-2C(Revised 3-19) Page 21

This page intentionally left blank.

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03105/19
NC0088200 City of Thomasville Water Plant 001 OMB No.2040-0004
TABLE C.CERTAIN CONVENTIONAL AND NON CONVENTIONAL POLLUTANTS(40 CFR 122.21(g)(7)(vi))1
Presence or Absence Intake
(check one) Effluent
(Optional)
Pollutant Units Maximum Long-Term
Believed Believed (specify) Maximum Daily Long-Term
Present Absent Discharge Monthly Average Daily Number of Average Number of
Discharge Discharge Analyses Analyses
(required) Value
(if available) (if available)
❑ Check here if you believe all pollutants on Table C to be present in your discharge from the noted outfall.You need not complete the"Presence or Absence"column of Table C for
each pollutant.
❑
Check here if you believe all pollutants on Table C to be absent in your discharge from the noted outfall.You need not complete the"Presence or Absence"column of Table C for
each pollutant.
1 Bromide 0 0 Concentration
(24959-67-9) Mass
Chlorine,total Concentration ug/L 53.7 25.2 65
2. residual ❑ ❑ Mass
3. Color 0 0 Concentration
Mass
Concentration
4. Fecal coliform -
Mass
5 Fluoride Concentration ug/L 300 96.96 13
(16984-48-8) ❑ 0 Mass
6 Nitrate-nitrite 0 0 Concentration
Mass
Nitrogen,total ❑ ❑ Concentration mg/L 2.18 0.76 12
7. organic(as N) Mass
8. Oil and grease 0 0 Concentration
Mass
9 Phosphorus(as ❑ Concentration mg/L <0.05 <0.05 11
P),total(7723-14-0) Mass
10. Sulfate(as SO4) © ❑ Concentration
(14808-79-8) Mass
11. Sulfide(as S) El Concentration
Mass
EPA Form 3510-2C(Revised 3-19) Page 23

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
NC0088200 City of Thomasville Water Plant 001 OMB No.2040-0004
TABLE C. CERTAIN CONVENTIONAL AND NON CONVENTIONAL POLLUTANTS(40 CFR 122.21(g)(7)(vi))1
Presence or Absence Intake
(check one) Effluent (Optional)
Units
Pollutant Maximum Long-Term
Believed Believed (specify) Maximum Daily Monthly Average Daily Number of Long-Term Number of
Present Absent Discharge Average 1
(required) Discharge Discharge Analyses Analyses
(if available) (if available) Value
•
12. Sulfite(as SO3) D El Concentration
(14265-45-3) Mass
13. Surfactants 0 Concentration
Mass
14. Aluminum,totalID 0 Concentration ug/L 331 221 12
(7429-90-5) Mass
15. Barium,total 0 0 Concentration
(7440-39-3)
Mass
16. Boron,totalEl 0 Concentration
(7440-42-8) Mass
17 Cobalt,total Concentration
(7440-48-4) Mass
18 Iron,totalEl El Concentration
(7439 89-6) Mass
19 Magnesium,total 0 a Concentration
(7439-95-4) Mass
Molybdenum, Concentration
20. total 0 0 Mass
(7439-98-7)
21. Manganese,totalEl El
Concentration
(7439-96-5) Mass _
22 Tin total ElConcentration
(7440-31-5) Mass
23 Titanium,total Concentration
0 El
(7440-32-6) Mass
EPA Form 3510-2C(Revised 3-19) Page 24

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
NC0088200 City of Thomasville Water Plant 001 OMB No.2040-0004
TABLE C.CERTAIN CONVENTIONAL AND NON CONVENTIONAL POLLUTANTS(40 CFR 122.21(g)(7)(vi))'
Presence or Absence Intake
(check one) Effluent (Optional)
Units
Pollutant Maximum Long-Term
Believed Believed (specify) Maximum Daily Monthly Average Daily Number of Long-Term Number of
Present Absent Discharge Discharge Discharge Analyses Average Analyses
re uired
( p ) (if available) (if available) Value
24. Radioactivity
Alpha,total ❑ ❑ Concentration
Mass
Beta,total El 0 Concentration
Mass
•
Concentration
Radium,total ❑ E Mass
Radium 226,total Concentration
0
Mass
Sampling shall be conducted according to sufficiently sensitive test procedures(i.e.,methods)approved under 40 CFR 136 for the analysis of pollutants or pollutant parameters or
required under 40 CFR chapter I,subchapter N or 0.See instructions and 40 CFR 122.21(e)(3).
EPA Form 3510-2C(Revised 3-19) Page 25

This page intentionally left blank. •

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
NC0088200 City of Thomasville Water Plant 001 OMB No.2040-0004
TABLE D.CERTAIN HAZARDOUS SUBSTANCES AND ASBESTOS(40 CFR 12221(g)(7)(vii)P
Presence or Absence
Pollutant (check one) Available Quantitative Data
Believed Believed Reason Pollutant Believed Present in Discharge (specify units)
Present Absent
1. Asbestos ❑ ✓❑
2. Acetaldehyde ❑ 0
3. Allyl alcohol ❑ CI
4. Allyl chloride ❑ El
5. Amyl acetate ❑ ❑
6. Aniline ❑ ❑r
7. Benzonitrile ❑ ❑r
8. Benzyl chloride 0 ❑�
9. Butyl acetate ❑ El
10. Butylamine ❑ El
11. Captan ❑ El
12. Carbaryl ❑ 0
13. Carbofuran 0 ❑r
14. Carbon disulfide ❑ ❑r
15. Chlorpyrifos ❑ ❑r
16. Coumaphos ❑ ❑r
17. Cresol ❑ El
18. Crotonaldehyde ❑ ❑r
19. Cyclohexane ❑ 0
EPA Form 3510-2C(Revised 3-19) Page 27

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
NC0088200 City of Thomasville Water Plant 001 OMB No.2040-0004
TABLE D.CERTAIN HAZARDOUS SUBSTANCES AND ASBESTOS(40 CFR 122.21(g)(7)(vii))1
Presence or Absence
Pollutant (check one) Reason Pollutant Believed Present in Discharge Available Quantitative Data
Believed Believed (specify units)
Present Absent
20. 2,4-D(2,4-dichlorophenoxyacetic acid) ❑ El
21. Diazinon ❑
22. Dicamba ❑ 0
23. Dichlobenil ❑ ❑r
24. Dichlone ❑ ca
25. 2,2-dichloropropionic acid 0 0
26. Dichlorvos 0 0
27. Diethyl amine ❑ 0
28. Dimethyl amine 0 E
29. Dintrobenzene 0 0
30. Diquat ❑ ✓❑
31. Disulfoton 0 El
32. Diuron ❑ ✓❑
33. Epichlorohydrin 0 ❑r
34. Ethion 0 ❑r
35. Ethylene diamine 0 ❑r
36. Ethylene dibromide ❑ El
37. Formaldehyde 0 El
38. Furfural 0 El
EPA Form 3510-2C(Revised 3-19) Page 28

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
NC0088200 City of Thomasville Water Plant 001 OMB No.2040-0004
•
TABLE D. CERTAIN HAZARDOUS SUBSTANCES AND ASBESTOS(40 CFR 122.21(g)(7)(vii))1
Presence or Absence
Pollutant (check one) Available Quantitative Data
Believed Believed Reason Pollutant Believed Present in Discharge (specify units)
Present Absent
39. Guthion ❑ El
40. Isoprene ❑ El
41. Isopropanolamine ❑ 0
42. Kelthane 0 0
43. Kepone 0
44. Malathion 0 ❑r
45. Mercaptodimethur ❑
46. Methoxychlor 0 ❑✓
47. Methyl mercaptan 0 0
48. Methyl methacrylate ❑ 0
49. Methyl parathion ❑ ❑✓
50. Mevinphos 0 El
51. Mexacarbate 0 0
52. Monoethyl amine 0 0
53. Monomethyl amine ❑ ❑r
54. Naled ❑ ❑r
55. Naphthenic acid ❑ El
56. Nitrotoluene ❑ El
57. Parathion ❑ El
EPA Form 3510-2C(Revised 3-19) Page 29

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
NC0088200 City of Thomasville Water Plant 001 OMB No.2040-0004
TABLE D.CERTAIN HAZARDOUS SUBSTANCES AND ASBESTOS(40 CFR 122.21(g)(7)(vii))t
Presence or Absence
Pollutant (check one) Available Quantitative Data
Believed Believed Reason Pollutant Believed Present in Discharge (specify units)
Present Absent
58. Phenolsulfonate ❑ 0
59. Phosgene ❑ 0
60. Propargite ❑ 0
61. Propylene oxide 0 0
62. Pyrethrins 0 0
63. Quinoline 0 0
64. Resorcinol 0 Cl
65. Strontium ❑ 0
66. Strychnine 0 0
67. Styrene 0 El
68. 2,4,5-T(2,4,5-trichlorophenoxyacetic 0 0
acid)
69. TDE(tetrachlorodiphenyl ethane) 0 0
70. 2,4,5-TP[2-(2,4,5-trichlorophenoxy) ❑ 0
propanoic acid]
71. Trichlorofon ❑ 0
72. Triethanolamine ❑ 0
73. Triethylamine 0 0
74. Trimethylamine ❑ 0
75. Uranium 0 0
76. Vanadium ❑ 0
EPA Form 3510-2C(Revised 3-19) Page 30

•
EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
NC0088200 City of Thomasville Water Plant 001 OMB No.2040-0004
TABLE D. CERTAIN HAZARDOUS SUBSTANCES AND ASBESTOS(40 CFR 122.21(g)(7)(vii))'
Presence or Absence
Pollutant (check one) Reason Pollutant Believed Present in Discharge Available Quantitative Data
Believed Believed (specify units)
Present Absent
77. Vinyl acetate ❑
78. Xylene ❑
79. Xylenol ❑ El
80. Zirconium ❑ El
' Sampling shall be conducted according to sufficiently sensitive test procedures(i.e.,methods)approved under 40 CFR 136 for the analysis of pollutants or pollutant parameters or
required under 40 CFR chapter I,subchapter N or 0.See instructions and 40 CFR 122.21(e)(3).
EPA Form 3510-2C(Revised 3-19) Page 31

This page intentionally left blank. •

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
NC0088200 City of Thomasville Water Plant 001 OMB No.2040-0004
TABLE E.2,3,7,8 TETRACHLORODIBENZO P DIOXIN(2,3,7,8 TCDD) (40 CFR 122.21(g)(7)(viii))
TCDD Presence or
Congeners Absence
Pollutant (check one) Screening Procedure
Used or Results of Sc een g
Believed Believed
Manufactured Present Absent
2,3,7,8-TCDD 0 D 0
EPA Form 3510-2C(Revised 3-19) Page 33

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Supplement to Process Line Drawing Thomasville WTP— Flow Balancing
Flow balancing cannot be accurately determined or even estimated for the alum lagoon NPDES permit
application. The water plant discharges an average 0.18 MGD of wastewater to the alum lagoon when
the lagoon is in service. However, the lagoon is subject to rainfall and evaporation on a daily basis.
Discharged flow is metered, but is highly variable. One daily flow was listed at 7.05 MGD, however that
was not a usual discharge, and was deemed inaccurate. It occurred in February 2022 when the lagoon
was being drawn down for clean out. There were a large number of small fish that made it past
screening and were discharged through the meter which likely affected the accuracy of the reading. If
the 7.05 MGD were accurate, that would have been a flow rate of 125 ft/sec which would have
completely scoured out the creek bed. The creek bed is unchanged, and thus such a discharge did not
occur. The next highest flow rate recorded was 2.71 MGD. The reported daily average includes a
number of zero discharge days as well. Using the reported average of 0.136 or 0.129 MGD if the 7.05
MGD is excluded from calculations is the best estimate we can provide.
Average flow reported on page 1 of Form 2c and on Table A of Form 2c include values with and without
the 7.05 MGD included.

Alum Lagoon Tox tests
Date Sample ID Reported
Sample
Collected Site&# Test Date ID Result Units
10/8/19 WPAL-1 Cdaph 100819 PASS
1/7/20 WPAL-1 Cdaph 010720 PASS
4/7/20 WPAL-1 Cdaph 040720 PASS
7/9/20 WPAL-1 Cdaph 070920 PASS
10/8/20 WPAL-1 Cdaph 100820 PASS
1/5/21 WPAL-1 Cdaph 010521 PASS
4/6/21 WPAL-1 Cdaph 040621 PASS
7/7/21 WPAL-1 Cdaph 070721 PASS
10/7/21 WPAL-1 Cdaph 100721 PASS
1/18/22 WPAL-1 Cdaph 011822 PASS
4/5/22 WPAL-1 Cdaph 040522 PASS
4/19/23 WPAL-1 Cdaph 041923 PASS

Alum Lagoon
Turbidity Tests
Date Sample ID Reported
Sample
Collected Site&# Test Date ID Result Units
9/26/19 WPAL-1 Turb 092619 <1 NTU _
10/8/19 WPAL-1 Turb 100819 <1 NTU
11/27/19 WPAL-1 Turb 112719 <1 NTU
12/16/19 WPAL-1 Turb 121619 3.88 NTU
1/7/20 WPAL-1 Turb 010720 3.78 NTU
2/5/20 WPAL-1 Turb 020520 2.69 NTU
3/4/20 WPAL-1 Turb 030420 <1 NTU
_ 4/7/20 WPAL-1 Turb 040720 <1 NTU
5/8/20 WPAL-1 Turb 050820 4.42 NTU
6/15/20 WPAL-1 Turb 061520 1.17 NTU
7/9/20 WPAL-1 Turb 070920 2.2 NTU
8/12/20 WPAL-1 Turb 081220 4 NTU
9/22/20 WPAL-1 Turb 092220 1.5 NTU
10/8/20 WPAL-1 Turb 100820 1.8 NTU
11/23/20 WPAL-1 Turb 112320 4.5 NTU
12/21/20 WPAL-1 Turb 122120 30.3 NTU
1/5/21 WPAL-1 Turb 010521 2.4 NTU
2/4/21 WPAL-1 Turb 020421 4.2 NTU
3/9/21 WPAL-1 Turb 030921 2.6 NTU
4/6/21 WPAL-1 Turb 040621 3.5 NTU
5/28/21 WPAL-1 Turb 052821 2.5 NTU
6/15/21 WPAL-1 Turb 061521 2 NTU
7/8/21 WPAL-1 Turb 070821 1.7 NTU
8/10/21 WPAL-1 Turb 081021 4 NTU
9/20/21 WPAL-1 Turb 092021 1.2 NTU
10/7/21 WPAL-1 Turb 100721 2.20 NTU
11/4/21 WPAL-1 Turb 110421 <1 NTU
12/17/21 WPAL-1 Turb 121721 2.3 NTU
1/18/22 WPAL-1 Turb 011822 2.3 NTU
2/10/22 WPAL-1 Turb 021022 2.3 NTU
3/10/22 WPAL-1 Turb 031022 10.7 NTU
4/5/22 WPAL-1 Turb 040522 3.4 NTU
4/18/23 WPAL-1 Turb 041823 2.5 NTU

Alum Lagoon
Metals Tests
Date Sample ID Reported
Sample
Collected Site&# Test Date ID Result Units
9/6/19 WPAL-1 Cu 090619 <2 ug/L
10/8/19 WPAL-1 Al 100819 165 ug/L
10/8/19 WPAL-1 Cu 100819 <2 ug/L
10/8/19 WPAL-1 F 100819 300 ug/L
10/8/19 WPAL-1 Zn 100819 <5 ug/L
11/27/19 WPAL-1 Cu 112719 <2 ug/L
12/16/19 WPAL-1 Cu 121619 <2 ug/L
1/7/20 WPAL-1 Al 010720 331 ug/L
1/7/20 WPAL-1 Cu 010720 <2 ug/L
1/7/20 WPAL-1 F 010720 130 ug/L
1/7/20 WPAL-1 Zn 010720 <5 ug/L
2/5/20 WPAL-1 Cu 020520 <2 ug/L
3/4/20 WPAL-1 Cu 030420 <2 ug/L
4/7/20 WPAL-1 Al 040720 220 ug/L
4/7/20 WPAL-1 Cu 040720 <2 ug/L
4/7/20 WPAL-1 F 040720 130 ug/L
4/7/20 WPAL-1 Zn 040720 <5 ug/L
5/8/20 WPAL-1 Cu 050820 <2 ug/L
6/15/20 WPAL-1 Cu 061520 <2 ug/L
7/9/20 WPAL-1 Al 070920 269 ug/L
7/9/20 WPAL-1 Cu 070920 <2 ug/L
7/9/20 WPAL-1 F 070920 0.22 ug/L
7/9/20 WPAL-1 Zn 070920 <5 ug/L
8/12/20 WPAL-1 Cu 081220 <2 ug/L
9/22/20 WPAL-1 Cu 092220 <2 ug/L
10/8/20 WPAL-1 Al 100820 192 ug/L
10/8/20 WPAL-1 Cu 100820 <2 ug/L
10/8/20 WPAL-1 F 100820 0.2 ug/L
10/8/20 WPAL-1 Zn 100820 <5 ug/L
11/20/20 WPAL-1 Cu 112020 <2 ug/L
12/15/20 WPAL-1 Cu 121520 <2 ug/L
12/21/20 WPAL-1 F 122120 <100?? ug/L
1/5/21 WPAL-1 Al 010521 250 ug/L
1/5/21 WPAL-1 Cu 010521 <2 ug/L
1/5/21 WPAL-1 F 010521 <100 ug/L
1/5/21 WPAL-1 Zn 010521 <5 ug/L
2/4/21 WPAL-1 Cu 020421 <2 ug/L
3/9/21 WPAL-1 Cu 030921 <2 ug/L
4/6/21 WPAL-1 Al 040621 308 ug/L
4/6/21 WPAL-1 Cu 040621 <2 ug/L
4/6/21 WPAL-1 F 040621 <100 ug/L
4/6/21 WPAL-1 Zn 040621 7 ug/L
5/27/21 WPAL-1 Cu 052721 <2 ug/L
6/10/21 WPAL-1 Cu 061021 <2 ug/L
7/7/21 WPAL-1 Al 070721 173 ug/L
7/7/21 WPAL-1 Cu 070721 <2 ug/L
7/8/21 WPAL-1 F 070821 280 ug/L
7/7/21 WPAL-1 Zn 070721 <5 ug/L
8/10/21 WPAL-1 Cu 081021 <2 ug/L
9/20/21 WPAL-1 Cu 092021 <2 ug/L
10/7/21 WPAL-1 Al 100721 189 ug/L
10/7/21 WPAL-1 Cu 100721 <2 ug/L
10/7/21 WPAL-1 F 100721 250 ug/L
10/7/21 WPAL-1 Zn 100721 <5 ug/L
11/4/21 WPAL-1 Cu 110421 <2 ug/L

Alum Lagoon
Metals Tests
Date Sample ID Reported
Sample
Collected Site&# Test Date ID Result Units
12/17/21 WPAL-1 Cu 121721 <2 ug/L
1/18/22 WPAL-1 Al 011822 171 ug/L
1/18/22 WPAL-1 Cu 011822 <2 ug/L
1/18/22 WPAL-1 F 011822 <100 ug/L
1/18/22 WPAL-1 Zn 011822 <5 ug/L
2/10/22 WPAL-1 Cu 021022 <2 ug/L
3/10/22 WPAL-1 Cu 031022 3 ug/L
4/5/22 WPAL-1 Al 040522 300 ug/L
4/5/22 WPAL-1 Cu 040522 <2 ug/L
4/5/22 WPAL-1 F 040522 170 ug/L
4/5/22 WPAL-1 Zn 040522 <5 ug/L
4/18/23 WPAL-1 Al 041823 80 ug/L
4/18/23 WPAL-1 Cu 041823 <2 ug/L
4/18/23 WPAL-1 F 041823 <100 ug/L
4/18/23 WPAL-1 Zn 041823 <5 ug/L

•
Alum Lagoon
pH Tests
Date Sample ID Reported
Sample
Collected Site&# Test Date ID Result Units
9/6/19 WPAL-1 pH 090619 7.6 SU
9/26/19 WPAL-1 pH 092619 7.5 SU
10/8/19 WPAL-1 pH 100819 7.2 SU
10/24/19 WPAL-1 pH 102419 7.4 SU
11/15/19 WPAL-1 pH 111519 7.0 SU
I 11/27/19 WPAL-1 pH 112719 6.8 SU
12/16/19 WPAL-1 pH 121619 6.8 SU
12/31/19 WPAL-1 pH 123119 6.9 SU
1/7/20 WPAL-1 pH 010720 6.9 SU
1/23/20 WPAL-1 pH 012920 6.0 SU
2/5/20 WPAL-1 pH 020520 6.6 SU
2/20/20 WPAL-1 pH 022020 6.8 SU
3/4/20 WPAL-1 pH 030420 6.7 SU
3/25/20 WPAL-1 pH 032520 6.7 SU
4/7/20 WPAL-1 pH 040720 7.0 SU
4/27/20 WPAL-1 pH 042720 7.0 SU
5/8/20 WPAL-1 pH 050820 6.8 SU
5/27/20 WPAL-1 pH 052720 6.6 SU
6/15/20 WPAL-1 pH 061520 6.9 SU
6/29/20 WPAL-1 pH 062920 6.8 SU
7/10/20 WPAL-1 pH 071020 6.8 SU
7/28/20 WPAL-1 pH 072820 6.9 SU
8/12/20 WPAL-1 pH 081220 6.9 SU
8/26/20 WPAL-1 pH 082620 6.6 SU
9/15/20 WPAL-1 pH 091520 6.9 SU
9/29/20 WPAL-1 pH 092920 6.7 SU
10/8/20 WPAL-1 pH 100820 6.7 SU
10/22/20 WPAL-1 pH 102220 6.5 SU
11/5/20 WPAL-1 pH 110520 6.6 SU
_ 11/23/20 WPAL-1 pH 112320 6.9 SU
12/15/20 WPAL-1 pH 121520 6.3 SU
12/31/20 WPAL-1 pH 123120 6.6 SU
1/7/21 WPAL-1 pH 010721 6.3 SU
1/27/21 WPAL-1 pH 012721 6.9 SU
2/4/21 WPAL-1 pH 020421 6.7 SU
2/17/21 WPAL-1 pH 021721 6.6 SU
3/9/21 WPAL-1 pH 030921 6.5 SU
_3/31/21 WPAL-1 pH 033121 6.3 SU
4/8/21 WPAL-1 pH 040821 7.0 SU
4/28/21 WPAL-1 pH 042821 7.1 SU
5/14/21 WPAL-1 pH 051421 7.3 SU
5/27/21 WPAL-1 pH 052721 7.2 SU
6/10/21 WPAL-1 pH 061021 6.9 SU
6/28/21 WPAL-1 pH 062821 7.0 SU
7/7/21 WPAL-1 pH 070721 7.1 SU
7/27/21 WPAL-1 pH 072721 7.2 SU
8/10/21 WPAL-1 pH 081021 7.5 SU
8/27/21 WPAL-1 pH 082721 6.9 SU
9/20/21 WPAL-1 pH 092021 7.5 SU
9/30/21 WPAL-1 pH 093021 7.1 SU
10/7/21 WPAL-1 pH 100721 7.0 SU
10/21/21 WPAL-1 pH 102121 7.1 SU
11/4/21 WPAL-1 pH 110421 7.0 SU
11/24/21 WPAL-1 pH 112421 6.9 SU
12/17/21 WPAL-1 pH 121721 7.1 SU

Alum Lagoon
pH Tests
Date Sample ID Reported
Sample
Collected Site&# Test Date ID Result Units
12/29/21 WPAL-1 pH 122921 7.0 SU
1/11/22 WPAL-1 pH 011122 6.9 SU
1/20/22 WPAL-1 pH 012022 6.8 SU
2/15/22 WPAL-1 pH 021522 7.1 SU
2/28/22 WPAL-1 pH 022822 6.8 SU
3/10/22 WPAL-1 pH 031022 6.8 SU
3/25/22 WPAL-1 pH 032522 6.8 SU
4/7/22 WPAL-1 pH 040722 6.8 SU
4/18/23 WPAL-1 pH 041823 6.5 SU
4/29/23 WPAL-1 pH 042923 6.2 SU

Alum Lagoon
LL Chlorine Tests
Date Sample ID Reported
Sample
Collected Site&# Test Date ID Result Units
9/6/19 WPAL-1 LL CL2 090619 31.5 ug/L _
9/26/19 WPAL-1 LL CL2 092619 34.5 ug/L
10/8/19 WPAL-1 LL CL2 100819 8.4 ug/L
10/24/19 WPAL-1 LL CL2 102419 20.4 ug/L
11/15/19 WPAL-1 LL CL2 111519 20.3 ug/L
11/27/19 WPAL-1 LL CL2 112719 11.3 ug/L
12/16/19 WPAL-1 LL CL2 121619 9.7 ug/L
12/31/19 WPAL-1 LL CL2 123119 16.0 ug/L
1/7/20 WPAL-1 LL CL2 010720 13.3 ug/L
1/29/20 WPAL-1 LL CL2 012920 20.3 ug/L
2/5/20 WPAL-1 LL CL2 020520 12.1 ug/L
2/20/20 WPAL-1 LL CL2 022020 16.0 ug/L
3/4/20 WPAL-1 LL CL2 030420 13.3 ug/L
3/25/20 WPAL-1 LL CL2 032520 11.7 ug/L
4/7/20 WPAL-1 LL CL2 040720 26.3 ug/L
4/27/20 WPAL-1 LL CL2 042720 26.8 ug/L
5/8/20 WPAL-1 LL CL2 050820 11.0 ug/L
5/27/20 WPAL-1 LL CL2 052720 23.9 ug/L
6/15/20 WPAL-1 LL CL2 061520 23.4 ug/L
6/24/20 WPAL-1 LL CL2 062420 19.9 ug/L
7/9/20 WPAL-1 LL CL2 070920 42.9 ug/L
7/28/20 WPAL-1 LL CL2 072820 41.4 ug/L
8/12/20 WPAL-1 LL CL2 081220 39.2 ug/L
8/26/20 WPAL-1 LL CL2 082620 18.5 ug/L
9/15/20 WPAL-1 LL CL2 091520 44.3 ug/L
9/29/20 WPAL-1 LL CL2 092920 15.1 ug/L
10/8/20 WPAL-1 LL CL2 100820 37.9 ug/L
10/22/20 WPAL-1 LL CL2 102220 33.8 ug/L
11/5/20 WPAL-1 LL CL2 110520 33.6 ug/L
11/23/20 WPAL-1 LL CL2 112320 24.8 ug/L
12/15/20 WPAL-1 LL CL2 121520 22.4 ug/L
12/31/20 WPAL-1 LL CL2 123120 19.0 ug/L
1/7/21 WPAL-1 LL CL2 010721 25.9 ug/L
1/27/21 WPAL-1 LL CL2 012721 35.2 ug/L
2/4/21 WPAL-1 LL CL2 020421 28.5 ug/L
2/17/21 WPAL-1 LL CL2 021721 30.4 ug/L
3/9/21 WPAL-1 LL CL2 030921 31.9 ug/L
3/31/21 WPAL-1 LL CL2 033121 25.5 ug/L
4/8/21 WPAL-1 LL CL2 040821 25.5 ug/L
4/28/21 WPAL-1 LL CL2 042821 46.1 ug/L
5/14/21 WPAL-1 LL CL2 051421 28.4 ug/L
5/27/21 WPAL-1 LL CL2 052721 46.9 ug/L
6/10/21 WPAL-1 LL CL2 052721 23.1 ug/L
6/28/21 WPAL-1 LL CL2 062821 18.7 ug/L
7/7/21 WPAL-1 LL CL2 070721 33.8 ug/L
7/27/21 WPAL-1 LL CL2 072721 40.7 ug/L
8/10/21 WPAL-1 LL CL2 081021 53.7 ug/L
8/27/21 WPAL-1 LL CL2 082721 45.8 ug/L
9/20/21 WPAL-1 LL CL2 092021 38.2 ug/L
9/30/21 WPAL-1 LL CL2 093021 20.4 ug/L
10/7/21 WPAL-1 LL CL2 100721 24.3 ug/L
10/21/21 WPAL-1 LL CL2 102121 43.3 ug/L
11/4/21 WPAL-1 LL CL2 110421 19.4 ug/L
11/24/21 WPAL-1 LL CL2 112421 32.8 ug/L
12/17/21 WPAL-1 LL CL2 121721 33.1 ug/L

Alum Lagoon
LL Chlorine Tests
Date Sample ID Reported
Sample
Collected Site&# Test Date ID Result Units
12/29/21 WPAL-1 LL CL2 122921 34.3 ug/L
1/11/22 WPAL-1 LL CL2 011122 26.0 ug/L
1/20/22 WPAL-1 LL CL2 012022 7.4 ug/L
2/15/22 WPAL-1 LL CL2 021522 7.0 ug/L
2/28/22 WPAL-1 LL CL2 022822 26.0 ug/L
3/10/22 WPAL-1 LL CL2 031022 24.8 ug/L
3/25/22 WPAL-1 LL CL2 032522 7.3 ug/L
4/7/22 WPAL-1 LL CL2 040722 12.5 ug/L
4/20/23 WPAL-1 LL CL2 042023 <0.015 ug/L
4/29/23 WPAL-1 LL CL2 042923 <0.015 ug/L

Alum Lagoon
Phosphorus Tests
Date Sample ID Reported
Sample
Collected Site&# Test Date ID Result Units
10/8/19 VVPAL-1 T Phos 100819 <0.05 mg/L
1/7/20 VVPAL-1 T Phos 010720 <0.05 mg/L
4/7/20 VVPAL-1 T Phos 040720 <0.05 mg/L
7/9/20 WPAL-1 T Phos 070920 <0.05 mg/L
10/8/20 WPAL-1 T Phos 100820 <0.05 mg/L
1/7/21 WPAL-1 T Phos 010721 <0.05 mg/L
4/6/21 WPAL-1 T Phos 040621 <0.05 mg/L
7/7/21 VVPAL-1 T Phos 070721 <0.05 mg/L
1/11/22 VVPAL-1 T Phos 011122 <0.05 mg/L
4/5/22 WPAL1 T Phos 040522 <0.05 mg/L
4/18/23 VVPAL-1 T Phos 041823 <0.05 mg/L

Alum Lagoon
TSS testing
Date Sample ID Reported
Sample
Collected Site&# Test Date ID Result Units
9/6/19 WPAL-1 TSS- 090619 <2.5 mg/L
9/26/19 WPAL-1 TSS- 092619 <2.5 mg/L
10/8/19 WPAL-1 TSS- 100819 <2.5 mg/L
10/24/19 WPAL-1 TSS- 102419 <2.5 mg/L
11/15/19 WPAL-1 TSS- 111519 <2.5 mg/L
11/27/19 WPAL-1 TSS- 112719 2.80 mg/L
12/16/19 WPAL-1 TSS- 121619 6.50 mg/L
12/31/19 WPAL-1 TSS- 123119 6.10 mg/L
1/7/20 WPAL-1 TSS- 010720 3.70 mg/L
1/29/20 WPAL-1 TSS- 012920 3.40 mg/L
2/5/20 WPAL-1 TSS- 020520 3.90 mg/L
2/20/20 WPAL-1 TSS- 022020 3.30 mg/L
3/4/20 WPAL-1 TSS- 030420 3.10 mg/L
3/25/20 WPAL-1 TSS- 032520 7.50 mg/L
4/7/20 WPAL-1 TSS- 040720 <2.5 mg/L
4/27/20 WPAL-1 TSS- 042720 <2.5 mg/L
5/8/20 WPAL-1 TSS- 050820 <2.5 mg/L
5/27/20 WPAL-1 TSS- 052720 6.12 mg/L
6/15/20 WPAL-1 TSS- 061520 4.50 mg/L
6/29/20 WPAL-1 TSS- 062920 <2.5 mg/L
7/10/20 WPAL-1 TSS- 071020 <2.5 mg/L
7/28/20 WPAL-1 TSS- 072820 3.00 mg/L
8/12/20 WPAL-1 TSS- 081220 2.70 mg/L
8/26/20 WPAL-1 TSS- 082620 3.70 mg/L
9/15/20 WPAL-1 TSS- 091520 <2.5 mg/L
9/29/20 WPAL-1 TSS- 092920 <2.5 mg/L
10/8/20 WPAL-1 TSS- 100820 3.00 mg/L
10/22/20 WPAL-1 TSS- 102220 4.50 mg/L
11/5/20 WPAL-1 TSS- 110520 3.00 mg/L
11/23/20 WPAL-1 TSS- 112320 3.70 mg/L
12/15/20 WPAL-1 TSS- 121520 17.29 mg/L
12/31/20 WPAL-1 TSS- 123120 2.80 mg/L
1/7/21 WPAL-1 TSS- 010721 <2.5 mg/L
1/27/21 WPAL-1 TSS- 012721 <2.5 mg/L
2/4/21 WPAL-1 TSS- 020421 3.95 mg/L
2/17/21 WPAL-1 TSS- 021721 3.55 mg/L
3/9/21 WPAL-1 TSS- 030921 <2.5 mg/L
3/31/21 WPAL-1 TSS- 033121 4.65 mg/L
4/8/21 WPAL-1 TSS- 040821 <2.5 mg/L
4/28/21 WPAL-1 TSS- 042821 5.55 mg/L
5/14/21 WPAL-1 TSS- 051421 <2.5 mg/L
5/27/21 WPAL-1 TSS- 052721 2.60 mg/L
6/10/21 WPAL-1 TSS- 061021 5.15 mg/L
6/28/21 WPAL-1 TSS- 062821 <2.5 mg/L
7/7/21 WPAL-1 TSS- 070721 <2.5 mg/L
7/27/21 WPAL-1 TSS- 072721 <2.5 mg/L
8/10/21 WPAL-1 TSS- 081021 3.7 mg/L
8/27/21 WPAL-1 TSS- 082721 4.83 mg/L
9/20/21 WPAL-1 TSS- 092021 3 mg/L
9/30/21 WPAL-1 TSS- 093021 2.6 mg/L
10/7/21 WPAL-1 TSS- 100721 <2.5 mg/L
10/21/21 WPAL-1 TSS- 102121 <2.5 mg/L
11/4/21 WPAL-1 TSS- 110421 <2.5 mg/L
11/24/21 WPAL-1 TSS- 112421 <2.5 mg/L
12/17/21 WPAL-1 TSS- 121721 <2.5 mg/L

Alum Lagoon
TSS testing
Date Sample ID Reported
Sample
Collected Site&# Test Date ID Result Units
12/29/21 WPAL-1 TSS- 122921 <2.5 mg/L
1/11/22 WPAL-1 TSS- 011122 <2.5 mg/L
1/20/22 WPAL-1 TSS- 012022 <2.5 mg/L
2/15/22 WPAL-1 TSS- 021522 <2.5 mg/L
2/28/22 WPAL-1 TSS- 022822 4.7 mg/L
3/10/22 WPAL-1 TSS- 031022 7.75 mg/L
3/25/22 WPAL-1 TSS- 032522 21.2 mg/L
4/5/22 WPAL-1 TSS- 040522 <2.5 mg/L
4/18/23 WPAL-1 TSS- 041823 <2.5 mg/L
4/29/23 WPAL-1 TSS- 042923 <2.5 mg/L

Alum Lagoon
Total Nitrogen Tests
Date Sample ID Reported
Sample
Collected Site&# Test Date ID Result Units
10/8/19 WPAL-1 TN 100819 0.38 mg/L
1/7/20 WPAL-1 TN 010720 0.43 mg/L
4/7/20 WPAL-1 TN 040720 0.4 mg/L
7/9/20 WPAL-1 TN 070920 1.2 mg/L
10/8/20 WPAL-1 TN 100820 0.46 mg/L
1/5/21 WPAL-1 TN 010521 1.13 mg/L
4/8/21 WPAL-1 TN 040821 0.81 mg/L
7/7/21 WPAL-1 TN 070721 0.34 mg/L
10/7/21 WPAL-1 TN 100721 0.4 mg/L
1/18/22 WPAL-1 TN 011822 0.79 mg/L
4/5/22 WPAL-1 TN 040522 0.6 mg/L
4/18/23 WPAL-1 TN 041823 2.18 mg/L

Alum Lagoon Hardness Tests
Date Sample ID Reported
Sample
Collected Site&# Test Date ID Result Units
10/8/19 WPAL-1 Hard 100819 44 mg/L
1/7/20 WPAL-1 Hard 010720 32 mg/L
4/7/20 WPAL-1 Hard 040720 32 mg/L
7/9/20 WPAL-1 Hard 070920 36 mg/L
10/8/20 WPAL-1 Hard 100820 36 mg/L
1/5/21 WPAL-1 Hard 010521 28 mg/L
4/6/21 WPAL-1 Hard 040621 28 mg/L
7/7/21 WPAL-1 Hard 070721 44 mg/L
10/7/21 WPAL-1 Hard 100721 44 mg/L
1/18/22 WPAL-1 Hard 011822 32 mg/L
4/5/22 WPAL-1 Hard 040522 32 mg/L
4/18/23 WPAL-1 Hard 041823 48 mg/L
mg/L